Home / 1,275,471.42-1,913,476.98-422,494.74

Finding the Fourth Proportional to 1,275,471.42, 1,913,476.98 and 422,494.74

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Solution

The fourth proportional to 1,275,471.42, 1,913,476.98 and 422,494.74 is: 633,831.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,275,471.42 : 1,913,476.98 = 422,494.74 : x
  2. Step 2: Convert to fraction form
    1,275,471.42/1,913,476.98 = 422,494.74/x
  3. Step 3: Cross multiply
    1,275,471.42x = 1,913,476.98 × 422,494.74
  4. Step 4: Simplify right side
    1,275,471.42x = 808,433,959,161.09
  5. Step 5: Solve for x
    x = 808,433,959,161.09/1,275,471.42
  6. Step 6: Final answer
    x = 633,831.50

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.